Summary of Significant Accounting Policies - Additonal Disclosures (Details)
$ in Thousands
12 Months Ended
Apr. 01, 2017
USD ($)
item
Mar. 26, 2016
USD ($)
item
Mar. 28, 2015
USD ($)
item
Advertising Costs      
Prepaid advertising $ 396 $ 570  
Advertising expense 24,700 22,000 $ 11,500
Income Taxes      
Accrued interest and penalties 0 $ 0  
Fair Value of Certain Financial Assets and Liabilities      
Financial assets requiring fair value measurements on a recurring basis 0    
Financial liabilities requiring fair value measurements on a recurring basis $ 0    
Supplier Concentration Risk | Sales Revenue      
Supplier Concentration Risk      
Number of largest suppliers | item 3 3 3
Concentration risk percentage 38.00% 38.00% 40.00%